DOMConfigurator.java 文件源码

/**
   Configure log4j by reading in a log4j.dtd compliant XML
   configuration file.

*/
protected
void doConfigure(final InputSource inputSource, LoggerRepository repository) 
                                        throws FactoryConfigurationError {
    if (inputSource.getSystemId() == null) {
        inputSource.setSystemId("dummy://log4j.dtd");
    }
    ParseAction action = new ParseAction() {
        public Document parse(final DocumentBuilder parser) throws SAXException, IOException {
            return parser.parse(inputSource);
        }
        public String toString() { 
            return "input source [" + inputSource.toString() + "]"; 
        }
    };
    doConfigure(action, repository);
  }